XCOM 2 is out now. I've been playing it for a few days now, and a review will be is incoming soon. (Spoilers: It is very good.)
To get you nice and jazzed to jump in to the commander's chair again, take a look at this new launch trailer for the game. It shows the Advent, an alien force who now rule over the earth not taking so kindly to XCOM trying to overthrow them. I'm deep into the game and there are lots of aliens in here that I've not even seen yet, which should give you an idea at how dense this game is.
Take a look: